"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : autocommit
Case Name   : 关闭自动提交，手动提交测试
Create At   : 2023/01/17
@zou_jialiang0501162244
Description :
    1、兼容B库建表
    2、session1连接B库，关闭自动提交，表中插入数据，session2查询后执行commit
    3、开启session2查询表数据，session1 commit后再次查询
    4、清理环境
Expect      :
    1、建表成功
    2、执行成功
    3、session1 commit后有数据
    4、成功
History     :
"""

import os
import time
import unittest

from testcase.utils.Logger import Logger
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.ComThread import ComThread


class TestAutocommit(unittest.TestCase):

    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.tb_name = 't_autocommit_0012'
        self.db_name = 'db_autocommit_0012'
        self.log.info("-----预置兼容B库-----")
        preset_db = f"drop database if exists {self.db_name};" \
                    f"create database {self.db_name} dbcompatibility 'B';"
        preset_db_res = self.pri_sh.execut_db_sql(preset_db)
        self.log.info(preset_db_res)
        self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, preset_db_res,
                      f"创建兼容B库失败")

    def test_autocommit(self):
        text1 = '-----step1:兼容B库建表;expect:建表成功-----'
        self.log.info(text1)
        create_tb = f"drop table if exists {self.tb_name} cascade;" \
                    f"create table {self.tb_name}(" \
                    f"c_bool boolean, c_enum enum('yes', ' ', 'no'));"
        create_tb_res = self.pri_sh.execut_db_sql(create_tb,
                                                  dbname=self.db_name)
        self.log.info(create_tb_res)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS, create_tb_res,
                      f"执行失败: {text1}")

        text2 = '-----step2:session1连接B库，关闭自动提交，表中插入数据，' \
                'session2查询后执行commit;expect:执行成功-----'
        self.log.info(text2)
        sql1 = f"set autocommit=0;" \
               f"insert into {self.tb_name} values(1, 1);" \
               f"select pg_sleep(3);" \
               f"commit;"
        session1 = ComThread(self.pri_sh.execut_db_sql,
                             args=(sql1, '', self.db_name))
        session1.setDaemon(True)

        text3 = '-----step3:开启session2查询表数据，session1 commit后' \
                '再次查询;expect:session1 commit后有数据-----'
        self.log.info(text3)
        sql2 = f"select * from {self.tb_name};" \
               f"select pg_sleep(3);" \
               f"select * from {self.tb_name};"
        session2 = ComThread(self.pri_sh.execut_db_sql,
                             args=(sql2, '', self.db_name))
        session2.setDaemon(True)
        # 先后启动线程，间隔1s
        session1.start()
        time.sleep(1)
        session2.start()
        session1.join(10)
        session2.join(10)
        result1 = session1.get_result()
        self.log.info(f'session1_results: {result1}')
        result2 = session2.get_result()
        self.log.info(f'session2_results: {result2}')
        self.assertIn('SET', result1, f"关闭自动提交失败: {text1}")
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, result1,
                      f"表中插入数据失败: {text1}")
        self.assertIn(self.constant.COMMIT_SUCCESS_MSG, result1,
                      f"提交事务失败: {text1}")
        self.assertIn('0 rows', result2, f"执行失败{text2}")
        self.assertEqual(result2.splitlines()[-2].strip(), 't      | yes',
                         f"执行失败{text2}")

    def tearDown(self):
        text4 = '-----step4:清理环境 expect:成功-----'
        self.log.info(text4)
        drop_db_res = self.pri_sh.execut_db_sql(
            f"drop database if exists {self.db_name};")
        self.log.info(drop_db_res)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, drop_db_res,
                      f"执行失败: {text4}")
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
